Analysis

  • max time kernel
    224s
  • max time network
    260s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 08:32

General

  • Target

    SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe

  • Size

    572KB

  • MD5

    e10777c560dcacc0537c588c2999bd7d

  • SHA1

    127b2a6444a323070ec31643dabfa3803ffe2ec5

  • SHA256

    5b72b74c569f9a1593b4bf313a02db7e10f9e8ffb5ed73ee73ed76b1c53ad13f

  • SHA512

    9339898e57c77be6966a1cab1fb39860b720e762fabcbfc8c21ebf5d3995b4c907910536eb0415a404dce2e9d06dc5176d2ef6b8e1620370556798a7825eafb8

  • SSDEEP

    12288:Ox3aWpUo67IMwM8yzwElEkj76s4DSABfUnNI1ic6DlQOys7OoG7P8M6cFmX3Z7i:l6s4DSuUNEiT5Fysy37PjF6l

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nDSrYRJUqGxFr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp697E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2624
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe
      "{path}"
      2⤵
        PID:4984
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe
        "{path}"
        2⤵
          PID:3796

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SecuriteInfo.com.Win32.CrypterX-gen.16847.11004.exe.log

        Filesize

        1KB

        MD5

        84e77a587d94307c0ac1357eb4d3d46f

        SHA1

        83cc900f9401f43d181207d64c5adba7a85edc1e

        SHA256

        e16024b092a026a9dc00df69d4b9bbcab7b2dc178dc5291fc308a1abc9304a99

        SHA512

        aefb5c62200b3ed97718d20a89990954d4d8acdc0a6a73c5a420f1bba619cb79e70c2cd0a579b9f52dc6b09e1de2cea6cd6cac4376cfee92d94e2c01d310f691

      • C:\Users\Admin\AppData\Local\Temp\tmp697E.tmp

        Filesize

        1KB

        MD5

        06aca8e5571b44d98cba52cce5327d82

        SHA1

        c5f78a8c024f5fb5c3808f2e3b57df166cc3010b

        SHA256

        514d54cac8ad711a0bf8071da8a08fa45a0ba4e91af7e85e7e1a84549db5f2b5

        SHA512

        a0c1ce2dd31879fa1eef04609df224fb76b177c850a9ab12edab22b7930515f4dfee01ddabb1056d9e94d4b48ff8f5a6e76c23e10a97a3d63a4fc9f3d570b12d

      • memory/2084-132-0x0000000000BB0000-0x0000000000C46000-memory.dmp

        Filesize

        600KB

      • memory/2084-133-0x0000000005AF0000-0x0000000006094000-memory.dmp

        Filesize

        5.6MB

      • memory/2084-134-0x0000000005620000-0x00000000056B2000-memory.dmp

        Filesize

        584KB

      • memory/2084-135-0x00000000057D0000-0x000000000586C000-memory.dmp

        Filesize

        624KB

      • memory/2084-136-0x00000000055F0000-0x00000000055FA000-memory.dmp

        Filesize

        40KB

      • memory/2624-137-0x0000000000000000-mapping.dmp

      • memory/3796-140-0x0000000000000000-mapping.dmp

      • memory/3796-141-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/4984-139-0x0000000000000000-mapping.dmp